Motoman Robots Arc Welding

Crane Turntable Weldments (Construction Equipment)

Flexible robot system welds 10 different pre-tacked turntable frame weldments. Different parts can be welded on the two headstock/tailstock positioners, but cycle times are balanced to optimize productivity. Robot system easily achieves required 1.79-hour steady-state takt time. Robotic system improves productivity and provides consistent, high-quality welds that meet customer’s specifications.

Achieve steady-state takt time (the rate of time that a completed product is finished in regular production) on all required part numbers that is no greater than 1.79 hours (107.4 minutes), not including any necessary manual welding. Weld time is defined as part-to-part exchange, including tooling changes, Touch-Sense, nozzle cleaning, and loading/unloading of parts.

Fixtures/Tooling Details

Motoman Robotics provided hydraulically clamped tooling used to locate parts on the headstock/tailstock positioners. Fixturing package includes two (drop-center type) spanner back-bones with a mounting surface for turntable bearing plates. Some manual change-out is required between the part models. Parts are mounted on locating pins.

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